Rolling-mill



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\ (No'ModeL) Y S. T. WELLMAN.

. ROLLING 'MILL. No. 277,860. Patented May 15,1883.

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ROLLING MILK. No. 277,860. Patented May 15,1883.

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st. T. WELL'MAN.

1 ROLLING MILL. No. 277,860. Patented May 15,1883.

I i ,T P Q v i A! w- A fill? T A m x I gig WITNESSES Y INVENTOR Mdfi 110SAMUEL T. ire-amiss,

\PATENT or CLEVELAND, OHIO.

ROLLlNG-MELL.

' SPECIFIGATIQli' forming part of Letters Patent No.277,860, dated May15, 1883.

Application filed his; 29, 1892. 1X0 model.)

To all whom it may concern:

the art to which it pertains to make and use the same.

My invention relates to rolls for rolling metal and apparatus forhandling the said metal while it is being, operated upon; and itconsists in the peculiar construction of said rolls and'apparatus, aswill be hereinafter fully set forth and claimed.

In the drawings, Figure 1 represents a iongitudinal vertical sectiontaken through my Fig. 2 is a plan view, partly in section,of the same.Fig. 3 is an enlarged detached view, showing more clearly theconstruction of the table-rolls. Fig. 4 is a view in vertical section,taken through the roll-housing and driving mechanism, showing also myarrangement for raising and lowering the middle roll. Figs. 5 and 6 areenlarged views, in section, of my roll-adjusting device.-

Figs. 7 ands are views, in elevation, of devices ibrhandliug and turningthe ingots or plates, and also showing a vertical cross-section takenthrough that part of my machine located beneath the said devices. Fig. Jis a plan view of a cylinder and piston which I employ for operating toraise and lower the tables of my machine. Figs. 10 ,and it aresectionstaken through the same in difierent directions, showing theinternal construction of the same.

A B G are a set of three-high rolls, or what are known as the Lanththree-high rolls. I) l) are two tables, one on each side of the rolls.These tables are supported at their outer ends in such a manner as toallow their inner ends,

or the ends next to the rolls, to be raised and lowered as is needed.The raising and lowering of the inner ends of the tables 3) D isaccomplished by means of a cylinder, E, and piston E, the constructionof whioh is shown more clearly in Figs. 9, 10, and ll. of the drawings.To the projecting end of the piston is pivotally secured two rods, 0. a.Said rods a a are suitably eonneoted to the crank-levers 'b b, which arein v turn connected to the up right rods 0 0. Upon the upper end ofthese rods 0 0' rest the-inner free ends of the tables DI). Thus it willbe seen that as water or steam is fed to the cylinder E the piston E isforced outward, and pulls with it the rods a a, which act through thecrank-levers b b' to ,raise the rods o c, and with them the free ends ofthe tables I) D. The object in raising and lowering the tables DD is toraise or lower the pile ingot or plate to the level of the space betweenthe higher and middle rolls, or tothe space between the lower and middlerolls, as the case may-he. The tables D D are provided with a series ofrollers, r1 d, which'are' geared together in such a manner as to allowof the said rolls being driven or revolved whether the tables are raisedor lowered. This is accomplished by means of suitable lines of shafting,with gearing which are preferably driven by means of a reversibleengine, F; but they may be driven by any suitable driving-power. Themanner of connecting theseshaftings and gearing is as follows:

F is a shaft which receiresthe motion from the reversible driving-power.This shaft, F is provided at both its ends with bevel-gears -e e, whichmesh with hovel-genrsc e ,-seoured to the ends of the shafts G G. (SeeFig. 1.)

The shafts G (Hare also provided with pin-.

ionsff', which mesh with the idlers g gflsaid idlers in turn meshingwith pinions It It, secured on the shafts H H. (See Figsl and 2.) Theends of the shafts H H are provided with bevel-gears i i, which meshwith hovel-gears jj on the shafts I 1. (See Fig. l.) Theshafis l I arealso provided with a suitable number of bevel-gears,which mesh with thegears I: k on the shafts J J, said shafts J J being pro; vided withpinions Z 1, which mesh withgean wheels in, secured on theroller-shafts;

By the use of the foregoing described train of gearing and shat ting Iam enabled to transmit motion in either direction to the. rollers 11 dat any time during the raising or lowering of the tahles l) l), or afterthey have been tween it andthe lower roll for the passage "of the plateor pile; but when the tables!) D'are raised it is necessary that the,middleroll, 13,

a I as mean should be lowered and a space provided between it and theupper roll for the passage back againof the plate between said middleand upper rolls; The raising and lowering of this middlo roli isaccomplished by means of a hydraulic or steam cylinder, K, and piston K.The piston K is connected to a rod, a, which is in turn secured to onesrm ot' the bell-crank levers o o, the other arm of said bell-cranklevers being secured to the rods 12 p, to the upper ends ofwhich areattached the bearings of the middle roll. Thusitwillbe' seen that as thepiston K is driven outward it wil operate to raise the roll, and whenitis allowed to resume its normal position it will lower the said middleroll, B.

The steam, wateiyor other forces which may he need to operate thepistons 'oi' the cylinders E and K are supplied to said cylindersthrough a four-way valve, L, which is shown in Fig. 2. This valve may heof any of the well-known forms which will act to supply the force to onecylinder and cut it otl from the other cylinder; and allow what is inthe out off cylinder to escape therefrom, as shown by arrows, Fig. 2, i'being the pipe leading to the cylinder E, and 1* being the pipe leadingto the cylinder K. s is the supply-pipe from the container or generator,and s is the wastepipe through which the used steam, water, or otherforce passes ,i'rom the cut-off cylinder. Thus it will be seenlthat whenforce is supplied to the cylinderE it is cut oif and allowed to escapefrom the' cylinder K, which will act to raise the tables D 1) and lowerthe middle w roll, B, and vice verse.

-My device for adjusting the bearings of the rolls A B (J when theybecome worn more on one side than on the other is shown in Figs. 4., 5,and 6, and consists of two screws, M M, which arejournaled in the upperend of the frame or housing of the rolls, the lower ends of said screwsresting on thejournals of the upper roll, and their upper ends being provided with two bevel'gears, t t.

N is a shaft which is provided with two hovel-gears, its, one of saidgears, it,- being keyed to the shaft N and the other, a, being allowedto revolve around thesaid shaft. The gear a is connected to or providedwith uworrngear, 2), which is also loosely journaled on the shalt N..lland-wheel 0 is keyed to the shaft, sons to rotate therewith. To thehand-wheel is secured a worm, e, which meshes with the worm-gear o. Byturning the hand-wheel 0. moth screw-shafts M M are operatedsimultaneously. By turning the worm e bymeane of a crank orothcr devicethe worm-gear v and bevel-gear a are revolved on the shaftN and operateto rotate the bei el-gear t and screw-shaft M, wilhoutoperating theshal't'M. By sliding the hand-wheel 0 outward, as shown in Fig. l, anddisengaging theworm o from I the worm-gears the shaftN is rotated andthe screw-shaft M is turned with the operating screw-shaft M.

Figs. 1, 7, and 8 show my devices i'or handling and turning the plates,ingots, or piles.-

These devices consist of the; levers l P, 01' her, on These levers'which there may be any suitable nnm each side of the plate or pile. areformed substantially in the manner shown in Figs. v7 and 8, and aresuspended near their i the right) and Fig. 8, will be readilyunderstood.

When it is desired to raise the plate or pile at the same time ofturning it I secure the upper ends of the cords, rods, or chains to, thepiston of a vertical cylinder, R, which may he operated by any suitableforce, and which is socured pivotally above the table of the machine, atthe desired point. This manner of operating the handling and turningdevice is shown in Figs. 1 (to the left.) and 7. v

The construction and operation of my cylinder E are as follows:

Eis the piston which is provided at its inner end with an I t-shapedextension, S. Shown in Figs. 10 and 11, dotted lines.) his X- shapedextension 8 is in turn provided at its inner end with a sleeve, S, whichsurrounds the said extension at this end. The water or steam, as itpasses to the cylinder E by way of the pipe r,'first opens the valve Tend enters through the port T, which acts to slowly start the pistonoutward until its one; has reached- KOO When the piston E has reachednearly the end of its stroke the sleeve S gradually closes the port U,thus cutting 0&1 the supply of water or steam and gradually bringing thepiston to a standstill." This construction of cylinder and pistonprevents the jarring of the. tables when they are being raised. When itis desired to reverse the motion of the piston E the. valve Y firstopens, which allows the water or steam to slowly escape from thecylinder through theport Y nntil the sleeve S has passed from under theport U, when thewater or steam is allowed to escape freely until thepiston has again closed this port U. After the port U has been closedthe water stillreinaining in the end of the cylinder actsas a cushionfor the piston, and thus the jarring of the tables D D is prevented whenthesaid tables are lowered.-

In order to counterbalance the upper roll and hold it up against thescrews M M, I provide weights X X, suspended on the ends ot'piv otedlevers av 41:, the other ends of thelevers a: xbeing pivotally securedto upright bars 3;

rec

p, which are in turn attached at their'upper first to combine with Therollers d d of the tablesD D are'i'ormed, as shown at Fig. 3, byshrinking a number of wheels of the same-diameter on a shaft, saidwheels being set a short distance apart,- 'This construction? enables-meto make alighter and cheaper roll, and rolls made in this manner areinlegery respect as operative as when formed so I I am aware that it isnot broadly new to provide in a rolling-mill adjustable tables forsupporting the metal to be rolled; nor is it new to provide anadjustabletable with feed-rollers; nor is it new to providevertically-adjustable tables with feed-rollers and friction gearing for.rotating said rollers in either direction; but I'am not a'wareihatheretofore feeding-rollers have been combined with adjustable tables andmechanism forrevolving said rollers in either direction during theopelation bfadjusting said tables. I am further aware that the broadcombinanon of an adjustable table for supporting the metal to be rolledwith an adjustable roll is not new; but, so far two pivotal andadjustable tables an adjustable roll, and means for conjointly andsimultaneously adjusting said tables and roll.

What I claim is-- v 1. Ina metal-plate-rolling machine, the combination,with three-high rolls, the middle roll adapted to be raised and lowered,of two tables,

one on each side of the rolls, said tables being pivotally supported attheir outer-ends, and mechanism, substantially as described, forsimultaneously raising the inner and adjacent ends of the tables andlowering the middle roll,

and for lowering the inner ends of the tables and raising the middleroll, substantially as set forth.

2. In a rnetal-plate-rolling machine, thccombination, with three-highrolls, the middle roll adapted to he raised and lowered, of a table forsupportingv the plate or ingot, said table being pivotally supported atits'onter end, power-cylinders and pistons, rocloshafts and connectingmechanism, substantially as described, and avalve for admitting andexhausting liquid or steam from the cylinders, whereby the tableisraised and the middle roll lowcred, and the latter raised and the tablelowered, substantially as set forth.

adapted to i'ices adapted to engage with the as I am aware, I am the 3.In a meta'l-plate-rolling machine, the combination, with three-highrolls, the middle roll be raised and 1owered, of two tables pivotallysupported at their outer ends, power cylinders, pistons, connectingmechanism, and valve for simultaneously raising the tables and loweringthemiddle roll, and lowering the tabios and raising the middle roll, andmechanism, substantially as described, for driving the feed-rollers ineither direction in any difierent adjustment of the -tahles,substantially as set forth. v

I 4. In a machine for rolling metal plates, the combination, with thetableor tables for supporting the plate,pile, or ingot, of the swiveledcords, rods, or chains, said cords, rods, or chains having secured totheir lower ends suitable grasping devices provided with. levers,substantially as set forth.

v5. In a niachine'for rolling metal plates, the

combination, with the swiveled cords, rods, or chains, provided at theirlower ends with deplate, pile, or ingot, of a pivoted cylinder andpiston for rais-t ing the said plate, pile, or ingot, and holding itwhen suspended, substantially as and for the purpose shown anddescribed.

6. In a. machine for rolling metal, the com bination, with the screw M,provided at its upper ends with a gear-wheel, of the gearwheel a,provided with a worm gear, and the worm a, secured to the hand-wheel,substantially asand 'forthe purpose shown and described. H

7 In a machine for rolling metal, the com bination, with rolls and-anadjusting-screw provided with a gear-wheel,of a shaft having agear-wheel loosely mounted thereon and er, ranged to mesh with thegear-wheel on-the-ad jnsting-screw, a handwheel locked to said shaft,and means for securing the hand-wheel and gear-wheel together in anydesired rotary adjustment, substantially as set forth.

In testimony whereof I have signed my name to this specification iii thepresence of two'sub scribing witnesses." i

JNO. GRQWELL, Jr., Ones. A. Fara.

